this post was submitted on 31 Oct 2024
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[–] [email protected] 28 points 2 weeks ago (38 children)

There's something that people really fail to grasp with solar, and that's the fact there is bugger all energy in the sun, and you need a huge surface area to get any meaningful energy.

A home solar array often takes up a significant chunk of the roof area, and the amount of surface area a car typically has means that even perfectly efficient solar panels wouldn't collect enough energy to significantly contribute to the vehicle's range.

There's a good reason why vehicle manufacturers don't bother adding them.

[–] [email protected] 24 points 2 weeks ago (29 children)

Yes, but with a light and efficient vehicle, along with enough area covered in solar, it should be able to get you about 15 miles of free travel when left out on a sunny day. It has a battery. It isn't just running on sunshine and lollipops.

[–] [email protected] -1 points 2 weeks ago (10 children)

Yeah, this is why it's dumb. When is a parked car parked ideally to capture sunlight? Just put the money into solar panels on a building or in a field, charge your car when parked, and you have a much better and cheaper product. The solar panels on the building can also be used to power other things, unlike the car. It's such a stupid idea and will be very expensive to get custom panels for the car that aren't super fragile and also efficient. Just spend that money and larger cheap panels. This is purely to get VC funding and nothing more. It's a waste of time and energy.

[–] [email protected] 5 points 2 weeks ago (1 children)

In america? Litterally everywhere. Even driving down the highway would get trickle charging.

If your expecting to fully charge from the panels, youre gonna have a bad day. But every extra mile would overcome the cost over its lifetime.

[–] [email protected] 1 points 2 weeks ago (1 children)

Again, I said ideally. When will it ever outperform solar on a rooftop of the same size? How much more size could you get for the price?

It would never overcome its opportunity cost, even if it recovers it's cost (which you're speculating on and have no idea of the cost). You could spend the extra money for a solar car, or spend the money for rooftop solar. Rooftop solar will always outperform it for the price, so you have a negative opportunity cost.

[–] [email protected] 3 points 1 week ago (1 children)

Look at you owning a rooftop to put solar on.

A lot of americans are renters and that number is unfortunately growing.

[–] [email protected] 1 points 1 week ago* (last edited 1 week ago)

The apartment I was last in was several stories tall and, as such, the parking lot was shaded most of the day. Most of the parking spaces were even in a parking garage, so they get no sunlight. If you're in an apartment, odds are this won't work for you either.

There are companies working on non-permanent balcony solar though, which isn't as good as rooftop but still something. That'll still only work for probably about half of apartments (facing east or west), but it's inexpensive.

We do need solutions for apartment dwellers, but a solar car probably isn't it. We need to require a certain amount of availability of electric charging at apartments, and we also need better public transportation options and bike Infrastructure. This is a gimmick solution, not a real solution.

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